kees99

10 ms·

181.
by kees99 7y ago
In a DNS-amplified DDoS attack, target (CF for example) would be on the receiving end (right-hand side of [1]), and blocking, while necessary, would not be terribly efficient there. On the other hand, deprecating "ANY" requests as
182.
by kees99 7y ago
Cloudflare killed "ANY?" because it was a significant vector in DNS amplification attacks. Ironically enough, avoiding the "expensive" query type resulted in potentially doubling the amount of DNS traffic from a typica
183.
by kees99 7y ago
[R]ecent update to the Raspberry Pi 4 bootloader (...) enables data over the USB-C port Am I reading this right that RPi4 has five usable USB ports, i.e. unlike earlier models, port on bottom left of the board can carry data alo
184.
by kees99 7y ago
Indeed, "browser.urlbar.autoFill" option (enabled by default) would do that in Firefox. There should be no forced https redirection if you fill in http:// prefix by hand though. At least for now, until example.com adds
185.
by kees99 7y ago
Some captive portals do TCP redirection, but no DNS redirection. And for good reason. Once user has finished jumping through whatever hoops captive portal want them to jump, a new connection to the same server is likely to be attempted, and
186.
by kees99 7y ago
This, exactly. I've spent way more time troubleshooting various obscure network problems that ended up being a typo in IP address/port number, than I'd be proud to admit.
187.
by kees99 7y ago
Same here, except it's comparing fly's flight trajectory to that of a banana is new to me.
188.
by kees99 7y ago
Red embers (~1000K eigen radiation) are hot, blue(-ish) ice (lit by 5500K daylight) is cold. ..go figure!
189.
by kees99 7y ago
According to [0]: F-Droid is both a repository of verified free software Android apps as well as a whole "app store kit" F-Droid also allows to source multiple repositories within one app. [1] [0] https://f-d
190.
by kees99 7y ago
Retail customer support is one such use-case. In the Netherlands, national railway company, many banks, telecoms, etc - all have webchat/twitter dm/whatsapp contact options prominently displayed either alongside phone numbers or r
191.
by kees99 7y ago
Vulnerabilities in Broadcom/Cypress wifi chips' firmware have been known for a while now: https://blog.exodusintel.com/2017/07/26/broadpwn/
192.
by kees99 7y ago
In-kernel resource-specific counters are great, but those are limited to 10/60/300 seconds averages. For historic resource utilization, sar/sadc tool is still a go-to.
193.
by kees99 7y ago
Are you sure? Looks like static pre-generated page to me: $ curl -s https://sourcehut.org/|egrep 'meta.*gen' <meta name="generator" content="Hugo 0.57.2" /> [0] https:/&
194.
by kees99 7y ago
There is more area than meets the eye - a large chunk of PCB itself is a "heatsink" thanks to sheer amount of metal in there.
195.
by kees99 7y ago
Indeed - there is enough aluminum/copper in the SoC's metal lid and PCB's inner (ground/power) layers, that the whole thing is effectively a 2-3 square-inch heat-sink. Eben himself has been talking about this technique a
196.
by kees99 7y ago
Quote: the metal casing helps spread that heat around It does, to a degree. But that is absolutely not what we are seeing in that IR picture. Shiny bare metal is a mirror at the wavelengths that thermal camera uses. So what you see
197.
by kees99 7y ago
It looks like an unreliable modification. PCIe is surprisingly robust at short lengths. For example, [NanoPi_M4] has two lanes of PCIe coming to the daughterboards via old-school 0.1" connector. Something that many electrical e
198.
by kees99 7y ago
A somewhat similar effect is alive and well on Android: background processes run measurably faster while user holds/moves their finger across the screen, and couple of seconds thereafter. Mechanism is a bit different though: SufraceFli
199.
by kees99 7y ago
Option "-l" only supposed to be used with text output. When mis-applied to binary (-w) output, it will: - On Linux, flush buffer at wrong places, breaking last (few) packet(s); - On Windows, flush buffer after every byte (which gi
200.
by kees99 8y ago
Or better yet, let udev trigger do the hard work of watching for you. Just add one line to /etc/udev/rules.d/99-my.rules file: ACTION=="remove", ENV{ID_SERIAL}=="Pixel_3_0a7...", RUN+="/
201.
by kees99 8y ago
other captive portals let user in, ostensibly to open inbox and click the link, then kick off the net if that didn't happen within 5 minutes.
202.
by kees99 8y ago
Facebook does exactly that. https://pbs.twimg.com/media/Dt23cXZXgAEDdW4.jpg
203.
by kees99 8y ago
> And SATA/SAS drives are running multiple ARM Cortex M series MCUs http://spritesmods.com/?art=hddhack
204.
by kees99 8y ago
Well, CF always charges you for full 10,000,000 requests/mo too. Also, it is super-common (especially on low end) to offer burstable CPU VMs [1,2]. So you are not getting charged for full CPU, unless you specifically ask for it. [1]
205.
by kees99 8y ago
Very cool tech. But ridiculously expensive. According to [1] you pay $5 per 10,000,000 requests, <10ms each. That works out to less than 27.8 hours of CPU time per month. And that's assuming near-perfect utilization of that 10ms win
206.
by kees99 8y ago
Older ThinkPads have a driver to limit battery charge range: http://www.thinkwiki.org/wiki/Tp_smapi
207.
by kees99 8y ago
I wonder why would fb move away from the well-established utm [1] link parameters to this? From the article, I can't see any functional difference. [1] https://en.wikipedia.org/wiki/UTM_parameters
208.
Free ARM Cortex-M Softcore for Xilinx FPGAs(arm.com)
1 points by kees99 8y ago|0 comments
209.
by kees99 8y ago
On the silkscreen, it appears that TX (transmit) and RX (receive) are designated backwards.
210.
by kees99 8y ago
> website which is "best viewed with Chrome" I'm stunned. Is this still a thing? Last time I remember seeing websites recommending a browser, it was late 90s with "get Netscape" gifs.

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